Apparatus

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sensors Mode-S transponder

ACDDE3

ICAO 24-bit transponder address · allocated to United States

Currently assigned to N928WN · BOEING 737-700 · operated by SOUTHWEST AIRLINES CO

Hex
ACDDE3
Octal
53156743
Decimal
11,328,995
Country
US
Tail
N928WN
Type
B737
No current signal · last broadcast Jul 26, 21:30 UTC
Flights observed
550
Distinct callsigns
20
Country
US
Last broadcast
Jul 26, 21:30 UTC

Last known position

Most recent position reported by Mode-S ACDDE3.

Country allocation

The ICAO 24-bit address ACDDE3 falls within the block assigned to United States (US) by ICAO Annex 10, Volume III. Every aircraft registered in United States receives a permanent address from this block at the time of registration; the address stays with the airframe even if the aircraft is re-registered to a different operator within the country.

Callsign history 20 distinct

Callsign Airline Flights Last seen
SWA1219 - 8 2026-07-04
SWA2743 Southwest Airlines 7 2026-05-11
SWA371 Southwest Airlines 6 2026-07-26
SWA3014 - 5 2026-07-07
SWA319 - 4 2026-07-07
SWA2272 - 4 2026-07-13
SWA188 Southwest Airlines 4 2026-05-14
SWA1276 - 4 2026-07-10
SWA121 - 4 2026-06-17
SWA994 Southwest Airlines 3 2026-05-23
SWA983 Southwest Airlines 3 2026-06-19
SWA735 Southwest Airlines 3 2026-05-19
SWA554 - 3 2026-07-18
SWA4724 Southwest Airlines 3 2026-06-21
SWA4333 Southwest Airlines 3 2026-07-21
SWA4199 Southwest Airlines 3 2026-06-22
SWA4116 Southwest Airlines 3 2026-06-17
SWA410 - 3 2026-06-22
SWA4055 Southwest Airlines 3 2026-05-20
SWA3899 Southwest Airlines 3 2026-05-28

Recent flights last 50

DateFlightRouteTakeoffLandingDuration
2026-07-26 SWA2333 RSW → STL Jul 26, 19:05 UTCJul 26, 21:30 UTC2h 25m
2026-07-26 SWA2298 SJC → SAN Jul 26, 16:35 UTCJul 26, 17:40 UTC1h 5m
2026-07-26 SWA3536 MCO → MKE Jul 26, 14:25 UTCJul 26, 15:25 UTC1h 0m
2026-07-26 SWA3536 MCO → MKE Jul 26, 14:25 UTCJul 26, 15:25 UTC1h 0m
2026-07-26 SWA1704 ORD → MCO Jul 26, 03:10 UTCJul 26, 05:00 UTC1h 50m
2026-07-26 SWA1704 ORD → MCO Jul 26, 03:07 UTCJul 26, 05:00 UTC1h 53m
2026-07-26 SWA371 HOU → MCO Jul 26, 00:10 UTCJul 26, 01:25 UTC1h 15m
2026-07-26 SWA371 HOU → MCO Jul 26, 00:07 UTCJul 26, 01:23 UTC1h 16m
2026-07-25 SWA371 HOU → MCO Jul 25, 22:30 UTCJul 25, 23:25 UTC55m
2026-07-25 SWA371 HOU → MCO Jul 25, 18:50 UTCJul 25, 21:20 UTC2h 30m
2026-07-25 SWA371 HOU → MCO Jul 25, 16:50 UTCJul 25, 17:40 UTC50m
2026-07-25 SWA2474 SNA → SJC Jul 25, 15:20 UTCJul 25, 15:55 UTC35m
2026-07-25 SWA3934 PHX → OAK Jul 25, 10:45 UTCJul 25, 13:40 UTC2h 55m
2026-07-25 SWA4964 MKE → MCO Jul 25, 02:00 UTCJul 25, 04:00 UTC2h 0m
2026-07-24 SWA3355 CMH → MDW Jul 24, 20:40 UTCJul 25, 01:00 UTC4h 20m
2026-07-24 SWA4189 DAL → LGA Jul 24, 16:35 UTCJul 24, 19:35 UTC3h 0m
2026-07-24 SWA1356 BOS → BWI Jul 24, 13:45 UTCJul 24, 15:30 UTC1h 45m
2026-07-24 SWA1356 BOS → BWI Jul 24, 13:41 UTCJul 24, 15:29 UTC1h 48m
2026-07-24 SWA4465 LAX → AUS Jul 24, 10:20 UTCJul 24, 12:40 UTC2h 20m
2026-07-24 SWA4465 LAX → AUS Jul 24, 10:19 UTCJul 24, 12:41 UTC2h 23m
2026-07-24 SWA1416 CVG → BWI Jul 24, 00:45 UTCJul 24, 02:45 UTC2h 0m
2026-07-23 SWA1416 CVG → BWI Jul 23, 21:50 UTCJul 24, 00:00 UTC2h 10m
2026-07-23 SWA2116 LAX → OAK Jul 23, 18:40 UTCJul 23, 20:20 UTC1h 40m
2026-07-23 SWA2116 LAX → OAK Jul 23, 16:25 UTCJul 23, 17:45 UTC1h 20m
2026-07-23 SWA2116 LAX → OAK Jul 23, 13:05 UTCJul 23, 15:20 UTC2h 15m
2026-07-23 SWA3998 PHX → DEN Jul 23, 09:55 UTCJul 23, 11:50 UTC1h 55m
2026-07-23 SWA1583 PVD → TPA Jul 23, 01:45 UTCJul 23, 03:50 UTC2h 5m
2026-07-22 SWA53 SAN → OAK Jul 22, 22:45 UTCJul 22, 23:35 UTC50m
2026-07-22 SWA4995 MSY → LAS Jul 22, 20:50 UTCJul 22, 21:45 UTC55m
2026-07-22 SWA1151 - Jul 22, 17:30 UTCJul 22, 19:40 UTC2h 10m
2026-07-22 SWA3902 LAS → OAK Jul 22, 15:35 UTCJul 22, 16:34 UTC59m
2026-07-22 SWA3902 LAS → OAK Jul 22, 15:40 UTCJul 22, 16:35 UTC55m
2026-07-22 SWA3227 BWI → MCI Jul 22, 11:15 UTCJul 22, 12:40 UTC1h 25m
2026-07-22 SWA3966 LAS → ORD Jul 22, 02:25 UTCJul 22, 04:15 UTC1h 50m
2026-07-22 SWA298 OAK → LIH Jul 22, 00:15 UTCJul 22, 01:20 UTC1h 5m
2026-07-21 SWA1638 LGA → BNA Jul 21, 21:25 UTCJul 21, 23:00 UTC1h 35m
2026-07-21 SWA2364 LGA → DEN Jul 21, 16:15 UTCJul 21, 20:15 UTC4h 0m
2026-07-21 SWA2735 BNA → LGA Jul 21, 13:05 UTCJul 21, 14:50 UTC1h 45m
2026-07-21 SWA4429 DEN → BNA Jul 21, 02:35 UTCJul 21, 04:40 UTC2h 5m
2026-07-21 SWA4429 DEN → BNA Jul 21, 02:34 UTCJul 21, 04:36 UTC2h 2m
2026-07-21 SWA4333 DCA → DAL Jul 21, 00:05 UTCJul 21, 01:25 UTC1h 20m
2026-07-20 SWA4333 DCA → DAL Jul 20, 22:30 UTCJul 20, 23:10 UTC40m
2026-07-20 SWA4333 DCA → DAL Jul 20, 20:40 UTCJul 20, 21:30 UTC50m
2026-07-20 SWA250 - Jul 20, 18:45 UTCJul 20, 19:35 UTC50m
2026-07-20 SWA250 - Jul 20, 16:55 UTCJul 20, 17:45 UTC50m
2026-07-20 SWA4743 - Jul 20, 15:15 UTCJul 20, 15:55 UTC40m
2026-07-20 SWA4743 HOU → HRL Jul 20, 15:13 UTCJul 20, 15:56 UTC43m
2026-07-20 SWA4702 PDX → STL Jul 20, 12:00 UTCJul 20, 13:25 UTC1h 25m
2026-07-20 SWA1319 OAK → ONT Jul 20, 03:20 UTCJul 20, 04:10 UTC50m
2026-07-20 SWA2911 LAX → OAK Jul 20, 00:45 UTCJul 20, 02:05 UTC1h 20m

About Mode-S

A Mode-S transponder code (also called an "ICAO 24-bit address" or "hex code") is a 6-character hexadecimal identifier permanently assigned to an aircraft when it's first registered. Unlike callsigns (which change with each flight) or registrations (which can change if an aircraft is sold internationally), the Mode-S address stays with the airframe for the life of the aircraft in that country.

Every ADS-B transmission from an aircraft includes its Mode-S address, making it the most reliable way to identify a specific airframe. Flight-tracking services like Apparatus use the Mode-S address as the primary key for tying position broadcasts, callsigns, and ownership records together.

Prefer a tail-number view? See the N928WN page for operator, model, and routing details .

Mode-S ACDDE3 frequently asked

What is Mode-S code ACDDE3?
ACDDE3 is an ICAO 24-bit transponder address. Allocated to United States. Assigned to N928WN.
Where is Mode-S ACDDE3 registered?
Mode-S code ACDDE3 is allocated to United States (US). All aircraft registered there receive a Mode-S address from a fixed block defined by ICAO Annex 10.
Is ACDDE3 broadcasting right now?
No active broadcast right now. Last signal was Jul 26, 21:30 UTC.
Hex, octal, and decimal Mode-S codes: what's the difference?
The same 24-bit identifier expressed in different bases: hex ACDDE3, octal 53156743, decimal 11,328,995.
What flights does ACDDE3 operate?
Mode-S ACDDE3 has broadcast 20 distinct callsigns, including SWA1219, SWA2743, SWA371, SWA3014, SWA319.